Air Pollution Effects on Library Microforms: Final Report to the Office of Preservation, National Endowment for the Humanities |
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50%RH Cyan Dye 50%RH Magenta Dye 50%RH Yellow Dye 50PPM SHOWS DENSITY 5272 Color Neg 5384 Color Pos 70C Shows density 80%RH 50PPM SHOWS Air Pollution APPENDIX B EFFECTS atmosphere begining blue density Cass chromogenic Cibachrome Film colloidal silver Color Neg Film Color Pos Film Cyan Dye 0.5 DENSITY 0.2 DENSITY CHANGE DENSITY OF 1.0 DIRECT DUPLICATING FILM Druzik Dye 50%RH Magenta Dye 80%RH Cyan Electrophotographic Environmental Science five weeks gas concentrations Glen H₂S Hours 30 HOURS 50%RH 5PPM Hours 50%RH Yellow Hours 80%RH Yellow HUMIDITIES AND OZONE hydrogen sulfide Ilfochrome Indoor Kodak KYNAR LOSS OR GAIN Magenta Dye 80%RH microfilm Nitrogen Dioxide OXIDIZING GASES OZONE CONCENTRATIONS PPM NO2 PVDF RH 5 ppm Science & Technology Shows density gain SHOWS DENSITY LOSS SILVER GELATIN FILM silver images Sulfur Dioxide temperature and humidity TOTAL DYE LOSS UNTREATED SILVER GELATIN Whitmore Yellow Dye 80%RH